Question 1

"Release of message contents to any person or process not possessing the appropriate cryptographic key" is a __________ attack.

Accepted Answer

A) content modification 
B) source repudiation 
C) disclosure 
D) sequence modification

Question 2

The appeal of __________ is that its designers have been able to prove an exact relationship between the strength of the embedded hash function and the strength of this form of authentication.

Accepted Answer

A) MAC 
B) HMAC 
C) GMAC 
D) CMAC

Question 3

If the calculated frame check sequence is equal to the incoming frame check sequence the message is considered authentic.

Accepted Answer

A) True 
 B)False

Question 4

When an entire message is encrypted for confidentiality using either symmetric or asymmetric encryption the security of the scheme generally depends on the __________ of the key.

Accepted Answer

The answer of When an entire message is encrypted for...

Question 5

Message authentication may also verify sequencing and timeliness.

Accepted Answer